/*
 * Copyright (C) 2005-2011 MaNGOS <http://www.getmangos.com/>
 *
 * Copyright (C) 2008-2011 Trinity <http://www.trinitycore.org/>
 *
 * Copyright (C) 2010-2011 ArkCORE <http://www.arkania.net/>
 *
 * This program is free software; you can redistribute it and/or modify
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef ARKCORE_SMARTSCRIPT_H
#define ARKCORE_SMARTSCRIPT_H

#include "Common.h"
#include "Creature.h"
#include "CreatureAI.h"
#include "Unit.h"
#include "ConditionMgr.h"
#include "CreatureTextMgr.h"
#include "Spell.h"
#include "GridNotifiers.h"

#include "SmartScriptMgr.h"
//#include "SmartAI.h"

class SmartScript {
public:
	SmartScript();
	~SmartScript();

	void OnInitialize(WorldObject* obj, AreaTriggerEntry const* at = NULL);
	void GetScript();
	void FillScript(SmartAIEventList e, WorldObject* obj,
			AreaTriggerEntry const* at);

	void ProcessEventsFor(SMART_EVENT e, Unit* unit = NULL, uint32 var0 = 0,
			uint32 var1 = 0, bool bvar = false, const SpellEntry* spell = NULL,
			GameObject* gob = NULL);
	void ProcessEvent(SmartScriptHolder& e, Unit* unit = NULL, uint32 var0 = 0,
			uint32 var1 = 0, bool bvar = false, const SpellEntry* spell = NULL,
			GameObject* gob = NULL);
	bool CheckTimer(SmartScriptHolder const& e) const;
	void RecalcTimer(SmartScriptHolder& e, uint32 min, uint32 max);
	void UpdateTimer(SmartScriptHolder& e, uint32 const diff);
	void InitTimer(SmartScriptHolder& e);
	void ProcessAction(SmartScriptHolder& e, Unit* unit = NULL, uint32 var0 = 0,
			uint32 var1 = 0, bool bvar = false, const SpellEntry* spell = NULL,
			GameObject* gob = NULL);
	ObjectList* GetTargets(SmartScriptHolder e, Unit* invoker = NULL);
	ObjectList* GetWorldObjectsInDist(float dist);
	void InstallTemplate(SmartScriptHolder e);
	SmartScriptHolder CreateEvent(SMART_EVENT e, uint32 event_flags,
			uint32 event_param1, uint32 event_param2, uint32 event_param3,
			uint32 event_param4, SMART_ACTION action, uint32 action_param1,
			uint32 action_param2, uint32 action_param3, uint32 action_param4,
			uint32 action_param5, uint32 action_param6, SMARTAI_TARGETS t,
			uint32 target_param1, uint32 target_param2, uint32 target_param3,
			uint32 phaseMask = 0);
	void AddEvent(SMART_EVENT e, uint32 event_flags, uint32 event_param1,
			uint32 event_param2, uint32 event_param3, uint32 event_param4,
			SMART_ACTION action, uint32 action_param1, uint32 action_param2,
			uint32 action_param3, uint32 action_param4, uint32 action_param5,
			uint32 action_param6, SMARTAI_TARGETS t, uint32 target_param1,
			uint32 target_param2, uint32 target_param3, uint32 phaseMask = 0);
	void SetPathId(uint32 id) {
		mPathId = id;
	}
	uint32 GetPathId() const {
		return mPathId;
	}
	WorldObject* GetBaseObject() {
		WorldObject* obj = NULL;
		if (me)
			obj = me;
		else if (go)
			obj = go;
		return obj;
	}

	bool IsUnit(WorldObject* obj) {
		return obj
				&& (obj->GetTypeId() == TYPEID_UNIT
						|| obj->GetTypeId() == TYPEID_PLAYER);
	}

	bool IsPlayer(WorldObject* obj) {
		return obj && obj->GetTypeId() == TYPEID_PLAYER;
	}

	bool IsCreature(WorldObject* obj) {
		return obj && obj->GetTypeId() == TYPEID_UNIT;
	}

	bool IsGameObject(WorldObject* obj) {
		return obj && obj->GetTypeId() == TYPEID_GAMEOBJECT;
	}

	bool ConditionValid(Unit* u, int32 c, int32 v1, int32 v2, int32 v3) {
		if (c == 0)
			return true;
		if (!u || !u->ToPlayer())
			return false;
		Condition cond;
		cond.mConditionType = ConditionType(uint32(c));
		cond.mConditionValue1 = uint32(v1);
		cond.mConditionValue1 = uint32(v2);
		cond.mConditionValue1 = uint32(v3);
		return cond.Meets(u->ToPlayer());
	}

	void OnUpdate(const uint32 diff);
	void OnMoveInLineOfSight(Unit* who);

	Unit* DoSelectLowestHpFriendly(float range, uint32 MinHPDiff);
	void DoFindFriendlyCC(std::list<Creature*>& _list, float range);
	void DoFindFriendlyMissingBuff(std::list<Creature*>& _list, float range,
			uint32 spellid);

	void StoreTargetList(ObjectList* targets, uint32 id) {
		if (!targets)
			return;

		if (mTargetStorage->find(id) != mTargetStorage->end())
			delete (*mTargetStorage)[id];

		(*mTargetStorage)[id] = targets;
	}

	bool IsSmart(Creature* c = NULL) {
		bool smart = true;
		if (c && c->GetAIName() != "SmartAI")
			smart = false;

		if (!me || me->GetAIName() != "SmartAI")
			smart = false;

		if (!smart)
			sLog->outErrorDb(
					"SmartScript: Action target Creature(entry: %u) is not using SmartAI, action skipped to prevent crash.",
					c ? c->GetEntry() : (me ? me->GetEntry() : 0));
		return smart;
	}

	bool IsSmartGO(GameObject* g = NULL) {
		bool smart = true;
		if (g && g->GetAIName() != "SmartGameObjectAI")
			smart = false;

		if (!go || go->GetAIName() != "SmartGameObjectAI")
			smart = false;
		if (!smart)

			sLog->outErrorDb(
					"SmartScript: Action target GameObject(entry: %u) is not using SmartGameObjectAI, action skipped to prevent crash.",
					g ? g->GetEntry() : (go ? go->GetEntry() : 0));
		return smart;
	}

	ObjectList* GetTargetList(uint32 id) {
		ObjectListMap::iterator itr = mTargetStorage->find(id);
		if (itr != mTargetStorage->end())
			return (*itr).second;
		return NULL;
	}

	GameObject* FindGameObjectNear(WorldObject* pSearchObject,
			uint32 guid) const {
		GameObject* pGameObject = NULL;

		CellPair p(
				Trinity::ComputeCellPair(pSearchObject->GetPositionX(),
						pSearchObject->GetPositionY()));
		Cell cell(p);
		cell.data.Part.reserved = ALL_DISTRICT;

		Trinity::GameObjectWithDbGUIDCheck goCheck(*pSearchObject, guid);
		Trinity::GameObjectSearcher<Trinity::GameObjectWithDbGUIDCheck> checker(
				pSearchObject, pGameObject, goCheck);

		TypeContainerVisitor<
				Trinity::GameObjectSearcher<Trinity::GameObjectWithDbGUIDCheck>,
				GridTypeMapContainer> objectChecker(checker);
		cell.Visit(p, objectChecker, *pSearchObject->GetMap());

		return pGameObject;
	}

	Creature* FindCreatureNear(WorldObject* pSearchObject, uint32 guid) const {
		Creature* crea = NULL;
		CellPair p(
				Trinity::ComputeCellPair(pSearchObject->GetPositionX(),
						pSearchObject->GetPositionY()));
		Cell cell(p);
		cell.data.Part.reserved = ALL_DISTRICT;

		Trinity::CreatureWithDbGUIDCheck target_check(pSearchObject, guid);
		Trinity::CreatureSearcher<Trinity::CreatureWithDbGUIDCheck> checker(
				pSearchObject, crea, target_check);

		TypeContainerVisitor<
				Trinity::CreatureSearcher<Trinity::CreatureWithDbGUIDCheck>,
				GridTypeMapContainer> unit_checker(checker);
		cell.Visit(p, unit_checker, *pSearchObject->GetMap());

		return crea;
	}

	ObjectListMap* mTargetStorage;

	void OnReset();
	void ResetBaseObject() {
		if (meOrigGUID) {
			if (Creature * m = HashMapHolder<Creature>::Find(meOrigGUID)) {
				me = m;
				go = NULL;
			}
		}
		if (goOrigGUID) {
			if (GameObject * o = HashMapHolder<GameObject>::Find(goOrigGUID)) {
				me = NULL;
				go = o;
			}
		}
		goOrigGUID = 0;
		meOrigGUID = 0;
	}

	//TIMED_ACTIONLIST (script type 9 aka script9)
	void SetScript9(SmartScriptHolder& e, uint32 entry);
	Unit* GetLastInvoker();
	uint64 mLastInvoker;

private:
	void IncPhase(int32 p = 1) {
		if (p >= 0)
			mEventPhase += (uint32) p;
		else
			DecPhase(abs(p));
	}

	void DecPhase(int32 p = 1) {
		mEventPhase -=
				(mEventPhase < (uint32) p ?
						(uint32) p - mEventPhase : (uint32) p);
	}
	bool IsInPhase(uint32 p) const {
		return mEventPhase & p;
	}
	void SetPhase(uint32 p = 0) {
		mEventPhase = p;
	}

	SmartAIEventList mEvents;
	SmartAIEventList mInstallEvents;
	SmartAIEventList mTimedActionList;
	bool mResumeActionList;
	Creature* me;
	uint64 meOrigGUID;
	GameObject* go;
	uint64 goOrigGUID;
	AreaTriggerEntry const* trigger;
	SmartScriptType mScriptType;
	uint32 mEventPhase;

	uint32 mInvinceabilityHpLevel;UNORDERED_MAP<int32, int32> mStoredDecimals;
	uint32 mPathId;
	SmartAIEventList mStoredEvents;
	std::list<uint32>mRemIDs;

	uint32 mTextTimer;
	uint32 mLastTextID;
	uint64 mTextGUID;
	Creature* talker;
	bool mUseTextTimer;

	SMARTAI_TEMPLATE mTemplate;
	void InstallEvents();

	void RemoveStoredEvent (uint32 id)
	{
		if (!mStoredEvents.empty())
		{
			for (SmartAIEventList::iterator i = mStoredEvents.begin(); i != mStoredEvents.end(); ++i)
			{
				if (i->event_id == id)
				{
					mStoredEvents.erase(i);
					return;
				}
			}
		}
	}
	SmartScriptHolder FindLinkedEvent (uint32 link)
	{
		if (!mEvents.empty())
		{
			for (SmartAIEventList::iterator i = mEvents.begin(); i != mEvents.end(); ++i)
			{
				if (i->event_id == link)
				{
					return (*i);
				}
			}
		}
		SmartScriptHolder s;
		return s;
	}
};

#endif
